1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
|
/*
Copyright (C) 2006 Paul Davis
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <cassert>
#include <ardour/internal_audio_port.h>
#include <ardour/audioengine.h>
using namespace ARDOUR;
using namespace std;
void
InternalAudioPort::default_mixdown (const list<InternalPort*>& ports, AudioBuffer& dest, nframes_t cnt, nframes_t offset)
{
list<InternalPort*>::const_iterator p = ports.begin();
dest.read_from ((dynamic_cast<AudioPort*>(*p))->get_audio_buffer(), cnt, offset);
for (; p != ports.end(); ++p) {
dest.accumulate_from ((dynamic_cast<AudioPort*>(*p))->get_audio_buffer(), cnt, offset);
}
}
InternalAudioPort::InternalAudioPort(const string& name, Flags flags)
: Port (DataType::AUDIO, flags)
, AudioPort (flags, engine->frames_per_cycle())
, InternalPort (name, DataType::AUDIO, flags)
{
_mixdown = default_mixdown;
}
void
InternalAudioPort::set_mixdown_function (void (*func)(const list<InternalPort*>&, AudioBuffer&, nframes_t, nframes_t))
{
_mixdown = func;
}
void
InternalAudioPort::reset ()
{
_buffer.resize (engine->frames_per_cycle());
_buffer.silence (_buffer.size());
}
AudioBuffer&
InternalAudioPort::get_audio_buffer ()
{
if (_connections.empty()) {
return AudioPort::get_audio_buffer();
}
/* XXX what about offset/size being more dynamic ? */
(*_mixdown) (_connections, _buffer, _buffer.size(), 0);
return _buffer;
}
|
